<template>
  <div>
    <!--  面包屑-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!--  卡片区域 -->
    <el-card>
      <!--    搜索框-->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span=" 4">
          <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>
      <!--      用户列表区-->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_state ">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="190px">
          <template slot-scope="scope">
            <el-tooltip content="编辑" placement="top" :enterable="false">
              <el-button type="primary" icon="el-icon-edit" size="mini"
                         @click="showEditDialog(scope.row.id)"></el-button>
            </el-tooltip>
            <el-tooltip content="删除" placement="top" :enterable="false">
              <el-button type="danger" icon="el-icon-delete" size="mini"
                         @click="removeUserById(scope.row.id)"></el-button>
            </el-tooltip>
            <el-tooltip content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-s-tools" size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>

          </template>
        </el-table-column>
      </el-table>
      <!--      分页区域-->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total">
      </el-pagination>
    </el-card>
    <!--    添加用户的对话框-->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%" @close="resetForm">
      <!--      对话框内容区-->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!--      对话框底部按钮-->
      <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
      <el-button type="primary" @click="addUser">确 定</el-button>
                 <el-button type="info" @click="resetForm('addForm')">重置</el-button>
  </span>
    </el-dialog>
    <!--    编辑用户-->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%" @click="editDialogClosed">
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
    </el-dialog>
    <!--    分配角色的对话框-->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%" @close="setRoleDialogClosed">
      <div>
        <p>当前的用户：{{ userInfo.username }}</p>
        <p>当前的角色：{{ userInfo.role_name }}</p>
        <p>分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    // 验证邮箱
    var checkEmail = (rule, value, callback) => {
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(.[a-zA-Z0-9_-])+/   //邮箱正则表达式
      if (regEmail.test(value)) {
        return callback()
      }
      callback(new Error('请输入合法的邮箱地址！'))
    };
    //手机号的验证规则
    var checkMoble = (rule, value, callback) => {
      const regMoble = /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/  //手机号正则表达式
      if (regMoble.test(value)) {
        return callback()
      }
      callback(new Error('请输入合法的手机号'))
    }


    return {
      // 获取用户列表参数的对象
      queryInfo: {
        query: '',  //用户搜索输入数据
        pagesize: 1, //当前页数
        pagenum: 2,
      },
      userlist: [],
      total: 0,
      setRoleDialogVisible: false,  //添加角色分配的对话框
      addDialogVisible: false, //控制添加用户对话框显示隐藏
      editDialogVisible: false,  //编辑用户按钮
      userInfo: {},   //需要被分配的用户信息
      rolesList: [],   //所有角色列表的数据列表
      selectedRoleId: [],  //已选中的角色id值
      //添加用户的表单对象
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: '',
      },
      editForm: {},  //为了编辑查询到的用户信息对象
      //添加用户的表单验证规则对象
      addFormRules: {
        username: [
          {required: true, message: '请输入用户名', trigger: 'blur'}, {
            min: 2,
            max: 10,
            message: '用户名长度3~10字符之间',
            trigger: 'blur'
          }
        ],
        password: [
          {required: true, message: '请输入密码', trigger: 'blur'}, {
            min: 6,
            max: 15,
            message: '密码长度3~10字符之间',
            trigger: 'blur'
          }
        ],
        email: [
          {required: true, message: '请输入邮箱', trigger: 'blur'}, {validator: checkEmail, trigger: 'blur'}
        ],
        mobile: [
          {required: true, message: '请输入手机号', trigger: 'blur'}, {validator: checkMoble, trigger: 'blur'}
        ]
      },
      // 修改表单的验证规则
      editFormRules: {
        email: [
          {required: true, message: '请输入用户的邮箱', trigger: 'blur'},
          {validator: checkEmail, trigger: 'blur'}
        ],
        mobile: [
          {required: true, message: '请输入用户的手机号', trigger: 'blur'},
          {validator: checkMoble}
        ]
      }
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const {data: res} = await this.$http.get('users', {params: this.queryInfo})
      // console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败！')
      }
      this.userlist = res.data.users
      this.total = res.data.total
    },

    // 改变pagesize的时候出发
    handleSizeChange(newSize) {
      // console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页码只变化的事件
    handleCurrentChange(newPage) {
      // console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 开关监听事件
    async userStateChanged(userinfo) {
      // console.log(userinfo)
      const {data: res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state //用户状态更改失败的话 取反 保持原来的状态（点击页面变了 因为失败了 取反回去）
        return this.$message.error('改变状态失败！')
      }
      this.$message.success('改变状态成功！')
    },
    // 添加用户表单重置
    resetForm() {
      this.$refs.addFormRef.resetFields();
    },
    // 监听添加用户关闭事件
    // addDialogClosed(){
    //   this.$refs.addFormRef.resetFields();
    // }
    // 添加用户确定按钮预验证
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        console.log(valid)
        if (!valid) return
        // !valid  结果是false   失败的话  直接return 不走程序
        //除了false 其他 true的时候 可以正常发起添加请求
        const {data: res} = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败！')    //失败的时候提示
          // console.log('res')
        }
        this.$message.success('添加用户成功！')    //成功的时候提示
        this.addDialogVisible = false;    // 关闭添加用户对话框
        this.getUserList()   //重新调页面接口刷数据
      })
    },
    // 编辑按钮
    async showEditDialog(id) {
      const {data: res} = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败！')
      }
      this.editForm = res.data
      // this.$message.success('查询用户信息成功！')
      this.editDialogVisible = true
    },
    // 关闭修改对话框的关闭事件--下次打开的时候编辑修改之前的数据显示
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息并提交-预验证
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        console.log(valid)
        if (!valid) return  //预验证不通过 直接return结束
        // 预验证通过--发起请求
        const {data: res} = await this.$http.put('users/' + this.editForm.id,
          {email: this.editForm.email, mobile: this.editForm.mobile})
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败！')
        }
        this.$message.success('修改用户信息成功！')
        this.editDialogVisible = false
        await this.getUserList()
      })
    },
    // 根据用户id删除用户
    async removeUserById(id) {
      const confrimResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => {
        return err
      })
      // catch后面直接紫萼 err => err页可以这样写

      // 如果是用户确认删除，那么返回值是字符串confrim
      // 如果是用户缺陷删除那么返回值是cancel字符串
      // console.log(confrimResult)
      if (confrimResult !== 'confirm') {
        return this.$message.info('已取消删除！')
      }
      const {data: res} = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户信息失败！')
      }
      this.$message.success('删除用户信息成功！')
      await this.getUserList()
    },
    // 权限分配按钮对话框
    async setRole(userInfo) {
      // 点击分配角色按钮展开对话框的同时获取所有角色列表数据
      const {data: res} = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败！')
      }
      this.rolesList = res.data
      this.userInfo = userInfo
      this.setRoleDialogVisible = true
    },
    // 点击按钮分配角色
    async saveRoleInfo() {
      if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色！')
      }
      const {data: res} = await this.$http.put(`users/${this.userInfo.id}/role`, {rid: this.selectedRoleId})
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色成功！')
      }
      this.$message.success('更新角色成功！')
      await this.getUserList()
      this.setRoleDialogVisible = false
    },
    // 监听分配角色对话框的关闭事件
    setRoleDialogClosed() {
      this.selectedRoleId = []
      this.userInfo = {}
    }

  }
}
</script>

<style scoped lang="less">

</style>
